Title:
METHOD OF SIMULTANEOUSLY RECOVERING LITHIUM SALT FOR ELECTROLYTE AND ORGANIC SOLVENT FROM WASTE ELECTROLYTE, AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP2014123460
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of simultaneously recovering lithium salt for electrolyte appropriately recyclable for a lithium battery and/or a lithium ion battery, and an organic solvent, and to provide a device capable of implementing the method.SOLUTION: A waste electrolyte containing an organic solvent and lithium salt which is an electrolyte of a lithium battery and/or a lithium ion battery is heated/condensed by an evaporator 2 to crystallize lithium salt. At the same time, when condensing and recovering the organic solvent evaporated by the evaporator in a condenser 3, the evaporator and the condenser are communicated with each other into one sealable system, the waste electrolyte is heated and the organic solvent is evaporated in the evaporator 2 while controlling a quantity of non-condensed gas in the condenser to be exhausted to a system outside 91 by means of exhaust means 16 provided in the condenser and capable of exhausting non-condensed gas outside of the system, to 5 mass% or less with respect to the initial quantity. The organic solvent evaporated by the evaporator 2 is condensed in the condenser 3.
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Inventors:
NISHIMURA HIROSHI
IKEHATA TOSHIHIKO
YAMAUCHI YUMIKO
IKEHATA TOSHIHIKO
YAMAUCHI YUMIKO
Application Number:
JP2012278374A
Publication Date:
July 03, 2014
Filing Date:
December 20, 2012
Export Citation:
Assignee:
JOINT ENGINEERING CO LTD
International Classes:
H01M6/52; B01D3/00; B01D9/02; C01B25/455; C01D15/00; H01M10/54; H01M10/0568; H01M10/0569
Attorney, Agent or Firm:
Takao Yanagino
Norio Morioka
Hisayoshi Sekiguchi
Masato Nakagawa
Norio Morioka
Hisayoshi Sekiguchi
Masato Nakagawa